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Finding the Fourth Proportional to 156,908.53, 216,526.59 and 88,921.52

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Solution

The fourth proportional to 156,908.53, 216,526.59 and 88,921.52 is: 122,707.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,908.53 : 216,526.59 = 88,921.52 : x
  2. Step 2: Convert to fraction form
    156,908.53/216,526.59 = 88,921.52/x
  3. Step 3: Cross multiply
    156,908.53x = 216,526.59 × 88,921.52
  4. Step 4: Simplify right side
    156,908.53x = 19,253,873,503.22
  5. Step 5: Solve for x
    x = 19,253,873,503.22/156,908.53
  6. Step 6: Final answer
    x = 122,707.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.